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Question

Which of the following plant hormone is extracted from fungus?

A
Ethylene
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B
Gibberellin
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C
Cytokinin
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D
2, 4-D
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Solution

The correct option is B Gibberellin
Gibberellins were discovered from diseased rice seedlings. The bakane (foolish seedling) is a disease of rice seedlings, was caused by a fungal pathogen; Gibberalla fujikuroi. Japanese scientist, E. Kurosawa reported the appearance of symptoms of the disease in uninfected rice seedlings when they were treated with sterile filtrates of the fungus. The active substances were later identified as gibberellic acid (gibberellin).
Thus, the correct answer is option B.

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